501 Science Oct 2019 Ch 8 Review

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Across
  1. 2. a force of attraction between all objects
  2. 5. devices that make far away objects seem closer
  3. 7. the Sun and all objects in orbit around it
  4. 8. any object that moves in orbit around another, larger body
  5. 10. curved pieces of glass
  6. 12. the four inner most planets, made of rock
  7. 14. smaller pieces of asteroids
  8. 16. the tendency of a moving object to keep moving in a straight line
  9. 17. large chunks of rock or metal in space
  10. 19. our galaxies nearest neighbor
  11. 20. an object orbiting the Sun that is mostly ice mixed with rock and dust
  12. 21. a sphere of hot gases that gives off light and heat
  13. 22. a slightly flattened circle, or oval
Down
  1. 1. the distance light travel's in one year
  2. 3. a meteoroid in Earth's atmosphere
  3. 4. a group of stars that make a pattern in the sky
  4. 6. a meteor that reaches Earth's surface
  5. 9. people who go into space
  6. 11. round objects in space that are satellites of the Sun
  7. 13. the outer planets, made mostly of gases
  8. 15. an unmanned spacecraft that leaves Earth's orbit
  9. 18. large groups of stars in the universe